Rae could almost hear the word 'business' coming as he spoke, and then he chose not to use it. He is leaving for some purpose he would have used 'business' to cover.

Curiosity as to the whys and what fors wars with the desire not to know those same things, because - though she trusts him in the context of her, here, right now, out there is another matter - she knows something of him, and has seen something of his ways. Some of the things he might politely term 'business.'

And if it is something that he chooses not to shroud that way, that he confesses, guiltily, him...

Sunshine gazes into his eyes, unsure what to say, what to ask. Whether or not she should, at all.